Feed-water purifier for locomotives



Dec. 6, 1927.

L. S. EMERY ET AL FEED WATER PURIFIER FOR LOCOMOTIVES Filed Aug. 7

gvvue'niou. Louis SEmer James JMa'gi (liken neg Patented Dec. 6, 1927. I

oN STATES j 1,552,103 PATENT OFFICE.

LOUIS s. nmnnyyo'r INDIANAPOLIS, INDIANA, AND, Janus MAGINN, or Lnuajonro.

' mss-wimefm'mme ron nocoivrorrvns.

. .iApplicati on -nled August 7, 1922 Sa ara/580,253.

Our said invention relates to afeed water purifier intended primarily for use in locomotives though it is applicable also to other boilers assfor example the boilers of stationary engines. It is an object of our ,in-,

.vention to provide' feed water purifying means on the inside of the boiler with means also inside the boiler for injecting feed water into the purifying device.v

A'further object of the invention is. to:

provide an inside water circulation whereby the hot water fromf'the boiler becomes mingled with the injected cold water without leaving the confines of the boiler and thusbeing lowered in temperature.

Referring to the accompanying drawings." which are made a part hereof and on which similar reference characters indicate similar p Figure 1 is a transverse section of the boiler on line 1-1 of Figure 2,

Figure 2 a longitudinal section on line 3 from the boiler into the drum and -anannular baffle 16 separates these openings from a central opening 17 leading back to the boiler.

Bowed strips of sheet metal 18 are, secured to the sides of the boiler as by rivets 19 and form with the boiler wall precipitation pipes located internally of the boiler. Feed water pipes 20 extend through the wall of the boiler into the precipitation pipes 18. An opening 21 adjacent to the top of the sludge drum servesfor attachment of a pipe for purposes of cleaning and is normally closed by acock. The cock in this pipe may be operated by a handleaccessible from the running board, as in the application of Everett 374,389, filed April 16, 1920.

In the operation of our device cold water is introduced into a'precipitation pipe 18 through a feed water pipe 20 and meets immediately with a stream'of Water at boiler temperature passing down in the precipitation pipe. It will, be noted that the feed water pipes are turned down to force the precipitation pipes. Because the temperatureof the hot water has not been reduced by leadLngit out of the boiler, the cold'water willimmediately be mingled with very hot water. Furthermore as the mixture travels slowly downward inthe precipitation pipe it is still" subjected at three sides to boiler temperature thereby heating the incoming water to a much higher temperature than would otherwise be the case and lessening its specific gravity and density and so causing a very complete precipitation of the solid matter carried thereby before it rises into the boiler. Such solid matter is precipitated in the pipes 18 and carried down into the sludge drum by the currents of water and deposited in the sludge drum while the water passes down to the lower end of the baffle 16 and then up through the opening 17 into the boiler.

Having thus fully described our said invention, what we claim as new and desire to secure by Letters Patent, is:

1. A boilerfeedwater purifier comprising f sludge drum attached to said boiler and communicating therewith, a baffle pipe sur- 1;

rounding the opening from the sludge drum into said boiler and extending for a distance into said sludge drum, a pipe within said boiler communicating at its lower end with said sludge drum outside the baffle pipe and j at its upper end with the interior of the boiler, and a feed-water pipe arranged to discharge into said first-mentioned pipe near the upper end thereof, substantially as set forth.

2. A feed water purifier adapted for use in a boiler having circulating currents and comprising an upright submerged heat conducting tube located in the boiler adjacent a downward current and having its upper end open to receive a fraction of said downward current, a connection near its upper end to admit boiler feed water, a sludge drum oined tothe lower end of the tube and having an outlet to return the fractional intake ofthe tube along with the admitted feed water back to the general circulation of the boiler, substantially as set forth.

3. A feed water purifier for boilers comprising a sludge drum attached to the lower side of the boiler, a battle concentric therestream of entering water downward inthe with depending from the bottom of the boiler, upright pueeipitution pipes extending along opposite side walls of theboiierleading into the sludge drum and being wholly within theboiler-,mndfeed waiter pipes extending through the Walls of the boiler into the precipitation pipes the latter pipesbeing open at the top, substantially as set forth.

4. A feed water purifier for use in a boiler dmving circulation currents comprising a sludge druln attached tothe underside of the boiler lwith an outlet into the boiler-ya bowed strip of sheet inetullwithin the boiler and secured t0 the wall thereof to form a precipitationpipe with an outlet into the sludge drum, means for injectingfeed Water int) said precipitation pipe, said pipe being open at the top and submerged, whereby part of the circulation of'looiler water'is diverted through the purifying systen substantially asset forth. t

5. The combination of a boiler hevlng a pair of {spaced holes in its lb0t QIIl,: ejdownwardly extending flange about one of said holes, w-pi'eeipitatiwi pipe leading from a point adjacent the water level to the other holeywfeed pipe near the upper end 01 said in the bottom of the boiler, substantially its set forth. In witness whereof, we have hereuntoset our hands at Indianapolis, Indiana, this 28th day of July, A. nineteen hundred"and precipitation pipe, and a sludge drum surrounding said flange and both 01 :sznddioles 

